A method for eliminating diagonal lines of a colored image fabric to improve picture fineness

Abstract

This invention relates to a method for eliminating diagonal patterns on colored image fabrics and improving image detail, comprising the following steps: (1) establishing four basic structures, selecting yarns with the same color-developing direction according to design requirements; (2) calculating the starting point positions of the four basic structures according to the color-developing yarn method, and establishing four sets of full-color-developing technical point structures respectively; (3) establishing four sets of shadow structures based on the designed four sets of basic structures combined with their full-color-developing technical point structures. This invention designs the starting point positions of the four sets of color-developing basic structures, forming four sets of shadow structures through the design of the basic structures and full-color-developing technical points. The application of shadow structures significantly improves the diagonal patterns on the surface of the colored image fabric, resulting in a soft and delicate appearance.

Description

Technical Field

[0001] This invention relates to the field of textile design technology, and specifically to a method for eliminating diagonal weave patterns in colored image fabrics to improve image detail. Background Technology

[0002] In colored image fabrics, the warp and weft density of the fabric corresponds to the image resolution achievable by that fabric; the higher the warp and weft density, the more detailed the image presented by the fabric. To improve the fineness of the fabric after the image warp weave design, existing technologies mainly focus on designing a fully color-developing structure. However, the fully color-developing structure designed using existing technologies suffers from overly obvious diagonal textures on the fabric surface. Invention patent CN 100503920C proposes a jacquard fabric structure design method that uses two sets of basic and complementary structures to satisfy the requirement of covering all warp and weft weft points. However, in the design method of basic and color-developing structure points, the color-developing points are continuous. In the establishment of a set of shadow weaves, it is necessary to avoid the color-developing points. Therefore, the corresponding weaves of each set are presented as a set of reinforced diagonal weaves by superimposing diagonal weaves, resulting in overly obvious diagonal textures on the fabric surface. The paper "The Influence of Starting Point Position Setting of Three-Weft Combination Full-Display Structure on Fabric Color Rendering" contains a detailed analysis of color rendering at the starting point position. However, this paper analyzes and verifies the gradient color rendering effect and color saturation of the fabric structure color rendering weft by designing the starting point position of three basic structures under RGB format. At the same time, its reinforcement point is a full-display structure library formed by increasing the points to the right in the same way. This method has a certain effect on improving the saturation and color of the fabric image, but it also has problems. The method of increasing the points to the right in the same way is itself a cavalry diagonal angle direction, and there is a phenomenon that the diagonal texture of the fabric surface is too obvious. Summary of the Invention

[0003] To address the technical problem of obvious diagonal patterns on colored image fabrics, this invention provides a method for eliminating diagonal patterns on colored image fabrics and improving image detail. This method has a significant improvement effect on the diagonal patterns on the fabric surface, and the resulting colored image fabric has a soft and delicate appearance.

[0004] This invention provides a method for eliminating diagonal weave patterns in colored image fabrics to improve image detail, comprising the following steps:

[0005] (1) Establish four basic structures and select yarns with the same color development direction according to design requirements;

[0006] (2) Based on the method of color development yarn, calculate the starting point position of the four basic structures and establish four sets of fully color development technical point structures respectively;

[0007] (3) Based on the four basic groups of the design, and combined with the full color rendering technology point organization, four groups of shadow and light organizations were established.

[0008] Furthermore, in step (1), the four basic tissues have the same tissue cycle number and the same fly number.

[0009] Furthermore, in step (1), the four basic tissues have different starting points.

[0010] Furthermore, in step (1), the color development of the weft yarn is either a weft yarn or a weft yarn color development method.

[0011] Furthermore, in step (2), the color-developing yarn is either warp or weft.

[0012] Furthermore, in step (2), the formula for calculating the starting point position of the four basic structures is 1+Rj / 4(n-1), where Rj represents the number of warp yarn cycles of the selected basic structure, and n represents the four starting points, with specific values ​​of n being 1, 2, 3, and 4 respectively.

[0013] Furthermore, the starting points for the four layers are as follows: layer C is calculated when the value of n is 1, layer M is calculated when the value of n is 2, layer Y is calculated when the value of n is 3, and layer K is calculated when the value of n is 4.

[0014] Furthermore, the method for establishing each group of light and shadow structures is to design and obtain the light and shadow structures by strengthening them sequentially upwards along the colored yarns, based on the starting point position.

[0015] The beneficial effects of this invention are as follows: This invention establishes a holographic tissue library by evenly distributing the starting points of four basic tissues. Based on the application of four CMYK patterns, the problem of obvious diagonal patterns can be solved by calculating the starting point positions. This design method is convenient, simple, and easy to operate, and the produced colored image fabric has a soft and delicate appearance. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a diagram showing the starting point positions of the four basic organizations in a specific embodiment of the present invention.

[0018] Figure 2 This is a phototactic tissue diagram corresponding to layer C in a specific embodiment of the present invention.

[0019] Figure 3 This is a phototactic tissue diagram corresponding to layer M in a specific embodiment of the present invention.

[0020] Figure 4 This is a phototactic tissue diagram corresponding to layer Y in a specific embodiment of the present invention.

[0021] Figure 5 This is a phototactic tissue diagram corresponding to layer K in a specific embodiment of the present invention.

[0022] Figure 6 This is a diagram showing the tissue effect after four layers are stacked according to a specific embodiment of the present invention.

[0023] Figure 7 This is a diagram showing the tissue effect after four layers are stacked according to a specific embodiment of the present invention.

[0024] Figure 8 This is a magnified image of a portion of the oblique weave pattern on a fabric, as per the specific implementation of this invention.

[0025] Figure 9 This is a photograph of a colored image fabric produced by a conventional method according to a specific embodiment of the present invention. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solutions of this invention, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this invention.

[0027] Example 1

[0028] A method for eliminating diagonal weave patterns in colored image fabrics and improving image detail includes the following production steps: Photoshop image processing and layering, computer-aided weaving process design, establishment of a library of four different starting point weave structures to enhance full color rendering, weaving, and dyeing and finishing.

[0029] This embodiment uses a weft yarn color development method for production. It is produced on a 360-type wide-width air-jet loom equipped with an electronic jacquard loom. The warp yarns use existing combed 60s pure cotton yarn warp beams, and the weft yarns use combed pure cotton yarns in four colors: cyan, magenta, yellow, and magenta. The fabric specifications are designed as follows: width 105 inches, warp density 173 ends / inch, and weft density 260 ends / inch.

[0030] 1. Select a color image for processing according to requirements, and adjust it to a size that conforms to the specifications and dimensions of the fabric. In this case, the image is adjusted to 5040 pixels vertically and 10320 pixels horizontally.

[0031] 2. In Photoshop, adjust the brightness, contrast, saturation, and edge sharpening parameters in CMYK mode, and use the "channel separation" method to split the image into four image files: C, M, Y, and K, resulting in four black and white BMP format images.

[0032] 3. Use the texture top software to process the four BMP images obtained from channel separation into colors. Select the grayscale color separation quantity according to the required level of detail of the image and take into account the overall texture level. The four images of C, M, Y and K need to have the same number of color separations and save them separately for later use.

[0033] 5. In the weaving TOP software, create a new structure library in the process processing, select the four basic structures required. The four basic structures have the same number of weave cycles and the same number of fly yarns, but different starting points. Take the 16-count 13-fly weft basic structure and use the weft yarn parallel color display method to calculate the starting point position formula: 1+Rj / 4×(n-1).

[0034] Where Rj represents the number of warp cycles of the selected basic weave structure;

[0035] According to the formula, the starting position of the weft satin is C, which is the first layer, n = 1, that is: 1 + 16 / 4 × (1 - 1) = 1, that is, the first warp yarn is the warp weave point;

[0036] M layer is the second layer, n=2, calculate: 1+16 / 4×(2-1)=5, the fifth point on the warp yarn of M layer is the warp weave point;

[0037] Y layer is the third layer, n=3, calculate: 1+16 / 4×(3-1)=9, the ninth point on the warp yarn of Y layer is the warp weave point;

[0038] K layer is the fourth layer, n=4, calculation: 1+16 / 4×(4-1)=13, the thirteenth point on the warp yarn of K layer is the warp weave point;

[0039] Specifically, such as Figure 1 The four basic weave patterns indicate the starting point positions. Based on the design method of the starting point positions, a set of shadow and light weave patterns is designed by reinforcing the weave upwards along the warp threads. It should be noted that the number of shadow and light weave patterns can be subdivided according to the required level of detail in the image. This design uses a 16-end satin weave as the minimum number of weave patterns, with each group divided into 14 weave patterns, as detailed below. Figure 2 , Figure 3 , Figure 4 , Figure 5 The light patterns corresponding to layers C, M, Y, and K are shown respectively.

[0040] 4. Based on the color rendering design method, weft yarn color rendering is used in this case. It is necessary to save the four images C, M, Y, and K that have been processed by cloud pattern color separation by rotating them 90° counterclockwise. At the same time, the horizontal pixels of the four images should be adjusted to 1 / 4 of the original image, while the vertical pixels should remain unchanged.

[0041] 5. Create a sample card. Design according to the maximum number of sample cards that can be designed in the software. If the maximum number of sample cards exceeds the maximum number of sample cards in the weaving software, you can design by cutting it in half. If it does not exceed the maximum number, there is no need to consider cutting. The pixel of this design has exceeded the current number of sample cards, so it is cropped into three sets of images with a size of 860x5040 pixels each, left, center and right. Save the images. Create a sample card with a width of 16 and a height of 215.

[0042] 6. Extract the fabric library established above, select pattern output, warp count: 4, weft count: 1. Enter the correspondence table between weft count / warp count, color number and fabric structure. According to the correspondence between color number and fabric structure, select 1 / 1 corresponding to C, 1 / 2 corresponding to M, 1 / 3 corresponding to Y, and 1 / 4 corresponding to K. Select the starting point for the pattern, which is the upper left corner. Generate the fabric pattern using the fabric top software, and then save the pattern file. After designing the left, middle and right groups, combine them into one pattern file and save it. Then, rotate the pattern file counterclockwise, add the introductory stitches and edge fabric to convert the pattern file into a design drawing. Output the design drawing as a JC5 file that can be read by a large jacquard machine and save it.

[0043] 7. Weaving on the loom: Based on the electronic jacquard equipment matching the 360-type wide-width air-jet loom, the warp yarn uses the existing combed 60s pure cotton yarn warp beam. The width of the loom is 105 inches, and the total number of warp threads is 18160. Copy the JC5 file into the jacquard machine computer. According to the weft insertion design, introduce combed 60s blue pure cotton yarn into the #1 weft feeder, combed 60s magenta pure cotton yarn into the #2 weft feeder, combed 60s yellow pure cotton yarn into the #3 weft feeder, and combed 60s black pure cotton yarn into the #4 weft feeder. The main process parameters of the equipment were optimized. Before starting the machine, the air pressure parameters for the weft insertion of the four weft feeders were set. The optimal process was as follows: weft insertion time of the main nozzle was 90-180°; air pressure: 0.2MPa for the main nozzle and 0.3MPa for the auxiliary nozzle; loom process parameters: back beam height / low position scale was -2, front / back position scale was 5; warp stop frame front / back position scale was 0, height / low position scale was -1; loom shedding time was 300 degrees; machine tension was 330kgf; and the machine was running smoothly. After finishing, inspection, and fabric repair, the fabric was put into storage.

[0044] 8. Dyeing and finishing: Since the colored landscape fabric is yarn-dyed, the entire production and processing flow is as follows: turning the fabric → singeing → boiling and bleaching (rolling) → drying → softening → pre-shrinking → finished product.

[0045] Figure 6 The diagram shows the design method of the starting point position of the currently disclosed technology. It is a conventional method of selecting the number of launches in four layers and then organizing the effect. Taking the longest float line in the diagram as an example, the longest is 37. The distribution of the longest float lines in each group is uneven, ranging from 19 to 37. Figure 7 The diagram shows the effect of using the discrete distribution calculation of the present invention to create a four-layer superimposed structure. It can be seen that the longest float is 14 threads, and each group has 14 threads, which are evenly distributed, resulting in a relatively uniform texture on the fabric surface.

[0046] This embodiment details the design steps for a color-image patterned fabric, using a clever design of the starting position of the weave point to improve the problem of overly obvious diagonal patterns on existing fabric surfaces. Figure 8 This image shows a magnified view of a portion of a conventionally fabriced diagonal weave pattern. Figure 9 The image shown is a physical picture of the colored image fabric produced by the present invention. It can be seen that the problem of the oblique texture of the existing fabric surface being too obvious has been improved, and the fineness of the image on the colored image fabric has been enhanced.

[0047] Although the present invention has been described in detail with reference to the accompanying drawings and preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made to the embodiments of the present invention by those skilled in the art without departing from the spirit and essence of the invention, and such modifications or substitutions should all be within the scope of the present invention. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should also be covered within the protection scope of the present invention.

Claims

1. A method for eliminating diagonal weave patterns in colored image fabrics to improve image detail, characterized in that, Includes the following steps: (1) Establish four basic structures and select yarns with the same color development direction according to design requirements; (2) Based on the method of color development yarn, calculate the starting point position of the four basic structures and establish four sets of fully color development technical point structures respectively; (3) Based on the four basic groups of the design and their full color rendering technology point organization, four groups of shadow and light organizations were established; In step (1), the four basic tissues have the same tissue cycle number and the same fly number; In step (1), the four basic tissues have different starting points; In step (2), the formula for calculating the starting point position of the four basic structures is 1+Rj / 4(n-1), where Rj represents the number of warp yarn cycles of the selected basic structure, and n represents the four starting points. The specific values ​​of n are 1, 2, 3, and 4 respectively. The four starting points are as follows: for layer C, the calculation is performed when the value of n is 1; for layer M, the calculation is performed when the value of n is 2; for layer Y, the calculation is performed when the value of n is 3; and for layer K, the calculation is performed when the value of n is 4.

2. The method for eliminating diagonal weave patterns in colored image fabrics and improving image detail as described in claim 1, characterized in that, In step (2), the color-developing yarn is either warp or weft.

3. The method for eliminating diagonal weave patterns in colored image fabrics and improving image detail as described in claim 1, characterized in that, The method for establishing each group of iridescent structures is to design and obtain the iridescent structure by reinforcing it sequentially upwards along the colored yarn, based on the starting point position.

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